Brake-shoe.



F. H. GIBBS. BRAKE SHOE.

APPLICATION FILED 0 01213, 1909. 961,344. Patented June 14,1910.

2 SHEETS-SHEET 1.

. I ignwnto? F. H. GIBBS.

- BRAKE SHOE. APPLICATION FILED 0011s, 1909.

Patented June 14, 1910.

2 SHEETS-SHEET 2.

UNTTE STATE PATENT OFFTQE.

FREDERICK H. GIBBS, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN GAR & FOUNDRY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

BRAKE-SHOE.

Specification of Letters Patent. Pzttgnted J 11119 14L, 191G).

Application filed October 13, 1909. Serial No. 522,412.

To all whom it may concern:

Be it known that I, FREDERICK H. GIBBS, residing in city, county, and State of New York, and being a citizen of the United States, have invented certain new and useful Improvements in Brake-Shoes, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof will occur to persons skilled in the art.

In said drawings: Figure 1 is a side elevational view. Fig. 2 .is a plan view. Fig. 3 is a fragmentary longitudinal sectional view, the section being taken on line 3-3 of Fig. 5. Fig. 4. is a perspective view of the hanger lug, hereinafter more fully described. Fig. 5 is a transverse sectional view, the section being taken on line 55 of'Fig. 2. Fig. 6 is a similar section on line 6-6 of Fig. 2. Figs. 7, 8, 9' and 10 are views similar respectively to Figs. 1, 2, 3 and 5, but showing a further embodiment of the invention. Fig. 11 is a plan view of the blank form which the hanger lug of the modified embodiment is preferably formed.

The object of the invent-ion is to provide a cast metal brake shoe with reinforcing wrought iron rods which are cast in the body of said shoe for the major portion of their length and extend outwardly beyond the body portion of said shoe intermediate their ends so as to provide means for. connecting thereto a hanger lug which preferably spans a portion of the cast metal of the body portion of the shoe and serves as a means of suspending the shoe from the brake headfsaid hanger lug, except for the loops formed by the rods, being preferably separable from the cast body and the hangerlug not being provided with means for insuring union between it and the body of cast metal. by fusion; the connection being a lock which may be'destroyed without destruction of the cast body in the preferred construction. 7

For convenience of manufacture it is preferable to form the hanger lug separately fromthe body of the shoe, and while hanger tag is not embedded and fased in the cast metal body, a portion of the cast metal of said body preferably extends between the legs of said hanger lug as best shown in the sectional View, Fig. 5, to assist in holding it in operative relation thereto.

Referring to the parts, 7 is a hanger lug which may be formed of suitable tough metal either cast, Wrought or of sheet steel. 8 are laterally projecting flanges on the hanger lug 7 which rest upon the cast metal body portion 9, which forms the body and wearing face of the shoe. Cast in said body portion 9 are, two longitudinally disposed wrought metal rods 10 which, as shown in plan view in Fig, 2, are curved outwardly near the middle portion of the shoe so as to extend far enough beyond the body portion to restnpon the portions 8 of the hanger lug 7 thereby firmly securing said hanger 111 in position upon the brake shoe and provi ing means extending longitudinally of the shoe I body 9, so that as the metal of the shoe is worn away said rods will be held in position in said cast metal body. For convenience of manufacture and to secure a more perfect' fusion between the rods 10 and the cast metal poured thereon, the rods 10 are bent slightly so as to bring the portions thereof at each side of the lug 7 relatively parallel and nearer than at their middle, where they pass over the flanges of the said lug, as is best shown in Fig. '2. Thus a brake shoe is produced with a body and wearingface of cast metal having reinforcing rods of soft metal therein (preferably wrought iron) so arranged as to rigidly lock in position a hanger lug formed separately from the body of the shoe. Where the rods 10 are properly placed in the flask in casting the greater portion of the shoe maybe worn away without danger of releasing the hanger lug, at the same time leaving a sufficient quantity of cast metal surrounding the rods 10 to insure perfect fusion with the body of the shoe, a conditionwhich does not exist where a plate is cast in said body in close proximity to the back.

Referring so-Figs? to 11 inclusive, 9' is east body portion of the brake shoe which is formed with the longitudinal flange 11 along the edge. are embedded the bars 10, corresponding to bars 10, and diiiering therefrom principally in that one of bars 10 is provided with laterally extending, transversely disposed pieces or bars, 10 of the same material as bars 10, and preferably formed integral therewith or suitably fixed thereto. Bars 10 are also provided with cross webs 10", 10 each preferably formed integral at its ends with bars 10, and embedded in the cast body of the shoe. Each bar 10 is bent intermediate its length and extends into and terminates within flange 11. Hanger lug 7 is preferably formed of sheet mater al, and when at the stage of a blank may have the form seen in Fig. 11, which blank is struck for producing bends along lines corresponding with the dotted lines in said figure, producing the pair of legs having the outwardly extending flanges 8 extending beneath and being retained by the middle, looped portions of bars 10. Upper and lower stiffening pieces may also be provided for said hanger lug resting on the contiguous face of body portion 9 and apertured at 7", 7 for the reception of the brake head.

What I claim is,

1. In a brake shoe, a cast metal body portion having a longitudinally extending member cast therein substantially throughout the length thereof and extending beyond the material of said body near its mlddle portion, and a hanger lug independent of confining engagement with the body portion and held in position by said longitudinally extending member.

2. In a brake shoe, a cast metal body portion having longitudinally extending members cast therein substantially throughout the length thereof and extending be 0nd the material of said body near its mi dle portion, and a hanger lug having legs resting on the outer face of the body portion and independent of confining engagement therewith and held in position by said longitudinally extendin members.

3. In a brake s 10s, a cast metal body portion having a pair of rods embedded-therein substantially throughout the len 11 thereof, said rods projecting beyond sai body portion to form hanger loops, and a hanger lug held between said loops and body outside the body.

4:. In a brake shoe, a cast metal body including a longitudinally disposed reinforcing rod surrounded by said cast metal for the major portion of its length and extending beyond said cast body to form a han er loop, and a hanger lug held thereby outside the body. s

5. In a brake shoe, a pair of reinforcing members extending longitudinally therein and projecting therebeyond and diverging at their projecting portion.

In said body portion w en;

6. In a brake shoe, the combination with a cast body portion, of a pair of reinforcing members disposed substantially parallel within the body portion throughout a portion of their length and diverging at another portion of their length and having a portion extending beyond the body portion.

7. In a brake shoe, the combination with a cast body portion, of a pair of reinforcing members embedded in the body portion and extending substantially parallel therein, and diverging and extending beyond the body portion at the diverging portion for forming hanger lug receiving means.

8. In a brake shoe, the combination with a cast body portion, of reinforcing members embedded therein substantially throughout their length, said members diverging and extending beyond the body portion at an intermediate portion for forming hanger lug receiving means.

9. In a brake shoe, the combination with a cast body portion, of a pair of reinforcing members embedded therein substantially throughout their length and parallel substantially throughout the embedded portions, said members diverging intermediate their length and extending beyond the body portion at their diverging portions.

10. In a brake shoe, the combination with a cast body portion, of a pair of reinforcing members embedded therein substantially throughout their length and parallel substantially throughout their embedded portions, said members diverging substantially at their middle portions and extending be yond the body portion and formed with parallel portions outside the body portion adapted to receive a hanger lug.

11. A brake shoe comprising a cast body, a pair of wrought pieces circumfused therein, and a wrought cross web connecting said pieces the wrought pieces extending-beyond the body and formed to receive a hanger lug.

12. A brake shoe comprising a cast body, a pair of wrought pieces circumfused therein, and a wrought cross web connectingsaid pieces, said cross web being formed integral with said pieces, the wrought pieces extending beyond the body intermediate their length and formed at such extending por tion to sustain a hanger lug. Y

13. A brake shoe comprising a cast body, a pair of wrought bars extending substantially throughoutthe body and embedded therein, and wrought cross webs connecting the lon itudinal bars, said barsv being bent outwar ly intermediate their length and extending beyond the cast body and formed to receive a hanger lug.

1 1. A brake shoe comprising a cast body, a pair of wrought bars embedded therein substantially throughout the length thereof and extending beyond the body intermediate their length, and a wrought cross web connecting the bars between the extending portion and one end and Within the body.

15. A brake .shoe comprising a cast body, a pair of Wrought pieces circumfused therein for a portion of their length and having a hanger lug receiving portion extending beyond the body, and a circumfused Wrought cross Web connecting the pieces.

16. In a brake shoe the combination of a body and circumfused pieces having lug receiving portions, and a lug having flanges engaging and retained by said pieces, and upper and lower stifiening pieces extending from the lug to andengaging the body and having brake-head receiving apertures.

17. A brake shoe comprising a cast body,

a pair of wrought pieces circumfused there-' in substantially throu bout the length of the cast body and exten ing beyond the body and having a hanger lug receiving portion.

18. A brake shoe comprisin a cast body having a cast longitudinal ange, and a ductile member circumfused in the body and flange, the ductile member having a hanger figi sustaining portion extending beyond the 19. A brake shoe comprising a cast body having a longitudinal flange, and a Wrought member circumfused in the body and flange and extending substantially throughout the length of the body, said wrought member having a hanger lug sustaining portion extending beyond the body substantially centrally of the body. I

20. A flanged brake shoe comprising a cast body, and a ductile member circumfused therein, said ductile member having a portion extending into the flange and having another portion extending beyond the body and formed to sustain a hanger lug. V

21. A brake shoe comprising a cast body, a Wrought member circumfused therein, and a separately formed hanger lug, a portion of the Wrought member extending beyond the cast body and sustaining said hanger lug.

In testimony whereof I aflix my signature in the presence of two Witnesses.

FREDERICK H. GIBBS.

WVitnesses:

A. HARRINGTON, L. GRIsFAn HANDY, 

